# Air Plan Approval; Oklahoma; Updates to the General SIP and New Source Review Permitting Requirements
> **Rule** · Final rule. · Published 2020-04-10 · Effective 2020-05-11 · 85 FR 20178
## Document
- **Document number:** 2020-06160
- **Category:** air-emissions
- **Federal Register citation:** 85 FR 20178
- **CFR reference:** 40 CFR 52
- **Publication date:** 2020-04-10
- **Effective date:** 2020-05-11
- **State:** OK
- **EPA docket:** EPA-R06-OAR-2018-0208
## Abstract

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving identified portions of revisions to the State Implementation Plan (SIP) for Oklahoma submitted by the State of Oklahoma designee by letters dated May 16, 1994; July 26, 2010; January 8, 2018; May 16, 2018; and December 19, 2018, and as clarified by letter dated May 16, 2018. This action addresses submitted revisions to the Oklahoma SIP pertaining to the incorporation by reference of federal requirements, updates to the general SIP provisions, and updates to the New Source Review (NSR) permit programs to address public notice and modeling requirements, including certain statutory provisions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/04/10/2020-06160/air-plan-approval-oklahoma-updates-to-the-general-sip-and-new-source-review-permitting-requirements)
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